54157 ,Quad 2-Line to 1-Line Data Selectors/MultiplexersApplicationsYExpand any data input pointYMultiplex dual data busesYGenerate four functions of two v ..
54157DMQB ,Quad 2-Line to 1-Line Data Selectors/MultiplexersApplicationsYExpand any data input pointYMultiplex dual data busesYGenerate four functions of two v ..
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I Synchronously programmable
I Internal look-ahead for fast counting
I Carry output ..
54163DM ,V(cc): +5V; synchronous presettable binary counter
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I Gated (enable/dlsable) serlal Inputs
I Fully buffered clock and aerial Inputs
I Asy ..
54165DMQB ,8-Bit Parallel-to-Serial Converter54165/DM741658-BitParallel-to-SerialConverterAugust198954165/DM741658-BitParallel-to-SerialConverte ..
68HC68W1 ,CMOS Serial Digital Pulse Width Modulator
6912 , SINGLE POLE, DOUBLE THROW COMMERCIAL MICROSTRIP MODULES
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694-3-10KB , High Current Low Profile Surface Mount Inductors
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54157
Quad 2-Line to 1-Line Data Selectors/Multiplexers
TL/F/6550
54157/DM54157/DM74157
Quad
2-Line
1-Line
Data
Selectors/Multiplexers
June 1989
54157/DM54157/DM74157
Quad 2-Line to 1-Line Data Selectors/Multiplexers
General Description
These data selectors/multiplexers contain inverters and
driversto supplyfull on-chip data selectiontothe fourout-
put gates.A separate strobe inputis provided.A 4-bit word selected fromoneof twosourcesandis routedtothefour
outputs.
Applications Expandany data input point Multiplex dual data buses Generate four functionsof two variables (one variable common) Source programmable counters
Features Buffered inputsand outputs Typical propagation time9ns Typical power dissipation 150mW Alternate Military/Aerospace device (54157)is avail-
able. Contacta National Semiconductor Sales Office/
Distributorfor specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6550–1
Order Number 54157DMQB, 54157FMQB,DM54157J, DM54157Wor DM74157N
SeeNS PackageNumberJ16A, N16Eor W16A
Function Table
Inputs OutputY
Strobe Select A B X X L L X L H X H X L L X H HeHigh Level,LeLow Level,Xe Don’tCare
C1995National SemiconductorCorporation RRD-B30M105/PrintedinU.S.A.
